Merge upstream/dev into rak-ethernet

Resolve conflicts: keep both Ethernet CLI and SenseCAP power-off
button code in repeater, keep both Ethernet docs and power management
CLI docs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/pr-build-check.yml

@@ -9,6 +9,14 @@ on:
       - 'variants/**'
       - 'platformio.ini'
       - '.github/workflows/pr-build-check.yml'
+  push:
+    branches: [main, dev]
+    paths:
+      - 'src/**'
+      - 'examples/**'
+      - 'variants/**'
+      - 'platformio.ini'
+      - '.github/workflows/pr-build-check.yml'
 
 jobs:
   build: